Cause

This typically occurs with home users using a consumer grade high speed ISP connection that changes speed (e.g. from 15 Mb/s to 3Mb/s) after a few minutes use. This appears to be a somewhat common cable ISP practice.

Resolution

To resolve this issue, edit the Microsoft.SystemCenter.CloudManager.Providers.Azure.exe.config file and add the AzurePageWriteRequestSizeInKiloBytes and MaximumConcurrentAzurePageWriteRequests settings below, then restart the App Controller Windows Azure Provider service.